Definition of dust-up in English:

noun

He thinks the current dust-up about electronic voting is a political squabble.

In a society that takes pride in the mildness of its political debates (with the exception of periodic dust-ups over Quebec sovereignty), immigrant fiction writers are among the country's sharpest social critics.

Now, if you're interested in getting to the bottom of these sorts of high jinks you want to see dust-ups like this because if things get ugly - and especially if they go into the courts - you know all the details are going to come out.